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Low Temperature Thermal Desalination (LTTD) Technology

  • 17 Mar 2023

On March 16, 2023, it was reported that the National Institute of Ocean Technology (NIOT) in Chennai is working on a green, self-powered desalination plant in Lakshadweep.

  • The plant is part of an initiative to provide potable water using LTTD technology.
  • Current desalination plants are powered by diesel generators requiring fuel shipment.
  • The new plant will generate its own power, making the process emission-free.
  • There are currently five plants operating, with four more expected and the self-sustaining plant expected to be operational later this year.

Low Temperature Thermal Desalination (LTTD) is a process that converts seawater into potable water using the difference in temperature between warm surface sea water and cold deep sea water.

LTTD technology is environment-friendly, requires no chemical pre or post-treatment of seawater, and is suitable for island territories with minimal pollution problems.